Grass-covered and unassuming, it sits within the bounds of an early monastic cashel, the term for a stone-walled enclosure that defined and protected an early Irish monastery, and it looks out across the water. Whether it is the remains of a leacht or the footprint of a vanished structure, nobody can say with certainty.

A leacht, in early Irish monastic contexts, is a low cairn or platform of stones, typically associated with commemoration or prayer, sometimes marking the grave of a saint or a site of particular devotion. The feature on the eastern edge of Inchcleraun has exactly this appearance: a modest, irregular mound that sits quietly on the margin between the monastic enclosure and the lough. It is comparable in form to a second example on the same island, a similarly shaped cairn recorded to the south of Templemurry, one of the several early churches that make Inchcleraun one of the more densely layered early Christian sites in the Irish midlands. The island is traditionally associated with Saint Diarmait, and its cluster of churches and enclosures reflects centuries of continuous monastic activity. That two features of this type survive, both ambiguous, both low and grass-grown, gives the island an additional quiet complexity beyond its better-known ruins.